Improvement in window-sash tighteners



1.-,EN'soN. Window-'Sash Tightener. y

.-NOQI7Q635, Patented Sep.t.14,1875.

N. PETERS. PHOTO-LITHOGRAPHER, WASHMGTON. D. C.

UNITED STATES PATENT OEEIcE JOSEPH BENSON, OF BOSTON, ASSIGNOR TO JACOBWELLMAN, OFMARBLE- HEAD, MASSACHUSETTS.

IMPROVEMENT IN WINDOW-SASH TIGHTENERS.

Specification forming part of Letters Patent No. 167,635, datedSeptember 14, 1875;y application led August 13, 1875.

' hereinafter described, for the purpose of forcing the window-sash to atight bearing against the parting bead of the sash-frame in closing thewindow-sash against the head or sill, as the case may be, of thesash-frame.

In the accompanying plate ot' drawings, Figure l is a front elevation ofan upper and lower window-sash, and showin g'my improved sash-tighteningdevice applied to both sashes.

Fig. 2 is a cross-section on line w x, Fig. 1; Fig. 3, a plan view ofthe meeting-rails of the two sashes and of a sash-fastener. v

In the drawings, A and B represent the upper and lower window-sashes; C,the sashframe in which they slide, and a the inside i bead, b theoutside bead, c the parting bead,

d the head, and f the sill, of the sash-frame O; g, conical studsprojecting from the'head d and the sill f of the sash-frame G; h,conical sockets in the contact-rails lof the sashes A and B with thehead d and sill f of the sashframe C. The conical sockets h of thesashrails l receive the conical studs g of the sashframe C, (see Figs. 1and 2,) and acting on the studs g, they draw and force the stiles 'm ofthe sashes tightly against the parting bead c of the sash-frame G, andtherebysecure (provided the meeting-rails o o of the two sashes be drawntogether by a suitable sashfastener, such as shown at D, Fig. 3) asufficiently tight and close joint between the sashes and theirsash-frame to prevent the passage of air and dust through them, and alsorattling or noise, the advantages of which are obvious.

Sash-fasteners of other forms than that shown may be used, and thereforeit is not intendedl to limit the invention to any one particular.sash-fastener, and, besides, the conical studs g and sockets h may bereversed in their application to the sashes and sashfrarne, but it ispreferable to apply them as described. A

Having thus described my invention, what I claim, and desire to secureby LettersPatent, is-

The combination of studs g and sockets h with a sash and sash-frame,substantially as described, for the purpose specified.

y JOSEPH BENSON. Witnesses:

EDWIN W. BEowN, ALBERT W. BROWN.

